I've been to this location once before, as well as the locations in NYC and San Diego, but I came back to Vegas for the July 4th weekend and came here with a group of friends. I was looking forward to it because Nobu is one of my favorite restaurants, but it was just our luck that the A/C at the Hard Rock Hotel was broken so it was hot and stuffy inside the whole hotel and restaurant... and then the gas broke so we weren't able to order hot dishes. Our cold dishes were good, especially the yellowtail sashimi. (my favorite dish there) We ordered a sushi and sashimi platter, but you can get good sushi and sashimi at most other places. They offered us free shots of pineapple and mango cocktail, and the service was good for the most part, until they started cleaning our table and spilled water all over my boyfriend.
I would come back to this restaurant, but I will probably opt for the NYC or Miami location next.